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List:       bugtraq
Subject:    FW: Security Bulletins Digest
From:       Patrick Oonk <patrick () pine ! nl>
Date:       1998-10-28 13:57:04
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-----Original Message-----
From: HP Electronic Support Center
[mailto:support_feedback@us-support.external.hp.com]
Sent: Wednesday, October 28, 1998 2:41 PM
To: security_info@us-support.external.hp.com
Subject: Security Bulletins Digest



                        HP Support Information Digests

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Digest Name:  Daily Security Bulletins Digest
    Created:  Wed Oct 28  4:20:04 PST 1998

Table of Contents:

Document ID      Title
---------------  -----------
HPSBUX9810-086   Security Vulnerability with SharedX

The documents are listed below.
----------------------------------------------------------------------------
---



Document ID:  HPSBUX9810-086
Date Loaded:  19981027
      Title:  Security Vulnerability with SharedX

<pre>
<a
name="Text1">---------------------------------------------------------------
----------
    HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00086, 28 October 1998
-------------------------------------------------------------------------

The information in the following Security Bulletin should be acted upon
as soon as possible.  Hewlett-Packard Company will not be liable for any
consequences to any customer resulting from customer's failure to fully
implement instructions in this Security Bulletin as soon as possible.

-------------------------------------------------------------------------
PROBLEM:  The SharedX program recserv is vulnerable to a denial of
          service attack.

PLATFORM:  HP 9000 series 700/800.

DAMAGE:    Excessive cpu usage.

SOLUTION:  Install the patches listed below.

AVAILABILITY:  All patches are available now.

-------------------------------------------------------------------------
I.
   A. Background
      HP SharedX Receiver Service (recserv) provides a method for a
      receiver to allow the sharing of windows without explicitly
      performing any xhost commands.  The Internet daemon, inetd,
      executes recserv when it receives a service request at the port
      listed in the services database.  Certain messages to the port
      can cause recserv to enter a tight processing loop

   B. Fixing the problem - Install the applicable patch:

         HP-UX revision 10.01  HP9000 Series 7/800   PHSS_16646
         HP-UX revision 10.10  HP9000 Series 7/800   PHSS_16647
         HP-UX revision 10.20  HP9000 Series 7/800   PHSS_16648
         HP-UX revision 11.00  HP9000 Series 7/800   PHSS_16649

      Note - For HP-UX revisions prior to 10.01, update to 10.X,
             or 11.X and install the applicable patch.

   C. To subscribe to automatically receive future NEW HP Security
      Bulletins from the HP Electronic Support Center via electronic
      mail, do the following:

      Use your browser to get to the HP Electronic Support Center page
      at:

        http://us-support.external.hp.com
               (for US, Canada, Asia-Pacific, & Latin-America)
        http://europe-support.external.hp.com     (for Europe)

      Login with your user ID and password (or register for one).
      Remember to save the User ID assigned to you, and your password.
      Once you are in the Main Menu:
      To -subscribe- to future HP Security Bulletins,
        click on "Support Information Digests".
      To -review- bulletins already released from the main Menu,
        click on the "Search Technical Knowledge Database."

      Near the bottom of the next page, click on "Browse the HP
      Security Bulletin Archive".
      Once in the archive there is another link to our current Security
      Patch Matrix.  Updated daily, this matrix categorizes security
      patches by platform/OS release, and by bulletin topic.

      The security patch matrix is also available via anonymous ftp:

      us-ffs.external.hp.com
      ~ftp/export/patches/hp-ux_patch_matrix

   D. To report new security vulnerabilities, send email to

       security-alert@hp.com

      Please encrypt any exploit information using the security-alert
      PGP key, available from your local key server, or by sending a
      message with a -subject- (not body) of 'get key' (no quotes) to
      security-alert@hp.com.

     Permission is granted for copying and circulating this Bulletin to
     Hewlett-Packard (HP) customers (or the Internet community) for the
     purpose of alerting them to problems, if and only if, the Bulletin
     is not edited or changed in any way, is attributed to HP, and
     provided such reproduction and/or distribution is performed for
     non-commercial purposes.

     Any other use of this information is prohibited. HP is not liable
     for any misuse of this information by any third party.
________________________________________________________________________

</pre>
-----End of Document ID:
HPSBUX9810-086--------------------------------------

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